Is the Fourier transform of the function $$ f(\xi) = e^{-t|\xi|^{2m}}$$ positive for $t>0$ and $m \in \mathbb{N}_0$?
3 of 3
retagged: this belongs to theory of stable processes, Levy-Khintchine Thm etc.
Abdelmalek Abdesselam
- 23k
- 1
- 67
- 127
Positivity of certain Fourier transform
Matthias Ludewig
- 9.9k
- 1
- 30
- 71